I brewed an All Grain Stone IPA Clone back on March 20th. Today, I put a cobra tap on the keg in my keezer in the garage for a taste as well as to compare to a chilled Stone IPA just purchased 15 minutes ago.

My beer was dry hopped by dropping a stainless herb ball containing 1 oz. of Centennial into the keg on May 15th. I compared the two and my beer has a much better nose and hop taste. The real Stone actually tastes a bit sweeter.

Voting for the one on the left as your's just because of the slight Chill haze, just needs a couple more days in the keg and you won't be able to telll the diference. I bet it tastes great, love me some Stone Beer.
Cheers